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policycoreutils — security advisory

Type: advisorySources: OSVAdvisory ID: DEBIAN-CVE-2018-1063

Context relabeling of filesystems is vulnerable to symbolic link attack, allowing a local, unprivileged malicious entity to change the SELinux context of an arbitrary file to a context with few restrictions. This only happens when the relabeling process is done, usually when taking SELinux state from disabled to enable (permissive or enforcing). The issue was found in policycoreutils 2.5-11.

Products
policycoreutils
Affected versions
Not specified
Fixed versions
2.7-1
CVEs
CVE-2018-1063
Confirmed fixed CVEs
Not specified
Updated in this feed
1 Nov 2026, 00:04 UTC · Revision 1

Source evidence

DEBIAN-CVE-2018-1063

core-osv · Original source

Published 2 Mar 2018, 15:29 UTC

Context relabeling of filesystems is vulnerable to symbolic link attack, allowing a local, unprivileged malicious entity to change the SELinux context of an arbitrary file to a context with few restrictions. This only happens when the relabeling process is done, usually when taking SELinux state from disabled to enable (permissive or enforcing). The issue was found in policycoreutils 2.5-11.

osv:DEBIAN-CVE-2018-1063

policycoreutils

Fixed versions: 2.7-1

policycoreutils

Fixed versions: 2.7-1

policycoreutils

Fixed versions: 2.7-1

Complete source record
{
  "id": "934980aff74d4241fc6d117c36357a397b6bdbdb55e8bb940e4d939b7828f3b1",
  "url": "https://osv.dev/vulnerability/DEBIAN-CVE-2018-1063",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "DEBIAN-CVE-2018-1063",
    "summary": "Context relabeling of filesystems is vulnerable to symbolic link attack, allowing a local, unprivileged malicious entity to change the SELinux context of an arbitrary file to a context with few restrictions. This only happens when the relabeling process is done, usually when taking SELinux state from disabled to enable (permissive or enforcing). The issue was found in policycoreutils 2.5-11.",
    "evidence": "osv:DEBIAN-CVE-2018-1063",
    "products": [
      {
        "name": {
          "value": "policycoreutils",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.7-1",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "policycoreutils",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.7-1",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "policycoreutils",
          "evidence": "/affected/2/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.7-1",
            "evidence": "/affected/2/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "medium",
    "structured": {
      "id": "DEBIAN-CVE-2018-1063",
      "aliases": [
        "DEBIAN-CVE-2018-1063"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2.7-1"
                }
              ]
            }
          ],
          "package": {
            "name": "policycoreutils",
            "purl": "pkg:deb/debian/policycoreutils?arch=source&distro=bookworm",
            "ecosystem": "Debian:12"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2018-1063.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2.7-1"
                }
              ]
            }
          ],
          "package": {
            "name": "policycoreutils",
            "purl": "pkg:deb/debian/policycoreutils?arch=source&distro=trixie",
            "ecosystem": "Debian:13"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2018-1063.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2.7-1"
                }
              ]
            }
          ],
          "package": {
            "name": "policycoreutils",
            "purl": "pkg:deb/debian/policycoreutils?arch=source&distro=forky",
            "ecosystem": "Debian:14"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2018-1063.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        }
      ],
      "modified": "2026-10-23T18:02:56.719872683Z",
      "provider": "osv",
      "upstream": [
        "CVE-2018-1063"
      ],
      "references": [
        "https://security-tracker.debian.org/tracker/CVE-2018-1063"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2018-1063",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 419881,
  "published_at": "2018-03-02T15:29:00.4+00:00"
}